ID28478A - DESIGNING CONSISTENCY PULP ON MEDIUM WITH OZONE WITHOUT HIGH MIXING SHEAR - Google Patents

DESIGNING CONSISTENCY PULP ON MEDIUM WITH OZONE WITHOUT HIGH MIXING SHEAR

Info

Publication number
ID28478A
ID28478A IDW20010438A ID20010438A ID28478A ID 28478 A ID28478 A ID 28478A ID W20010438 A IDW20010438 A ID W20010438A ID 20010438 A ID20010438 A ID 20010438A ID 28478 A ID28478 A ID 28478A
Authority
ID
Indonesia
Prior art keywords
ozone
designing
medium
consistency pulp
high mixing
Prior art date
Application number
IDW20010438A
Other languages
Indonesian (id)
Inventor
De Vos Rolf
Tikka Panu
Original Assignee
Crs Reactor Engineering Uk Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Crs Reactor Engineering Uk Ltd filed Critical Crs Reactor Engineering Uk Ltd
Publication of ID28478A publication Critical patent/ID28478A/en

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/10—Bleaching ; Apparatus therefor
    • D21C9/147—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications
    • D21C9/153—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications with ozone

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

A method for bleaching medium consistency pulp with an ozone-containing gas is disclosed. The highly concentrated ozone-carrying stream is introduced into the pulp stream without mechanical mixing, or accompanied by mixing of moderate intensity. Thus, advance is taken by the rapid reaction of ozone in plug-flow conditions without the use of fiber-destroying shear forces.
IDW20010438A 1998-08-24 1999-08-24 DESIGNING CONSISTENCY PULP ON MEDIUM WITH OZONE WITHOUT HIGH MIXING SHEAR ID28478A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI981808A FI981808A (en) 1998-08-24 1998-08-24 Method for bleaching pulp

Publications (1)

Publication Number Publication Date
ID28478A true ID28478A (en) 2001-05-31

Family

ID=8552347

Family Applications (1)

Application Number Title Priority Date Filing Date
IDW20010438A ID28478A (en) 1998-08-24 1999-08-24 DESIGNING CONSISTENCY PULP ON MEDIUM WITH OZONE WITHOUT HIGH MIXING SHEAR

Country Status (12)

Country Link
EP (1) EP1115946B1 (en)
JP (1) JP4888749B2 (en)
AT (1) ATE386836T1 (en)
AU (1) AU753807B2 (en)
BR (1) BR9913123B1 (en)
CA (1) CA2341490C (en)
DE (1) DE69938189T2 (en)
ES (1) ES2303383T3 (en)
FI (1) FI981808A (en)
ID (1) ID28478A (en)
PT (1) PT1115946E (en)
WO (1) WO2000011262A1 (en)

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH073039B2 (en) * 1986-06-02 1995-01-18 三菱製紙株式会社 Pulp bleaching equipment
FI89516B (en) * 1989-05-10 1993-06-30 Ahlstroem Oy Foerfarande Foer blekning av cellulosamassa med Otson
AU636173B2 (en) * 1989-10-30 1993-04-22 Lenzing Aktiengesellschaft Method for the chlorine-free bleaching of pulps
US5411633A (en) * 1991-04-30 1995-05-02 Kamyr, Inc. Medium consistency pulp ozone bleaching
US5372679A (en) * 1992-06-08 1994-12-13 Air Products And Chemicals, Inc. Reactor system for treating cellulosic pulp at a constant upward flow velocity
JPH0633390A (en) * 1992-07-08 1994-02-08 Sumitomo Heavy Ind Ltd Method for bleaching pulp with ozone
CA2132165A1 (en) * 1993-09-21 1995-03-22 Lewis D. Shackford Method for rapid ozone bleaching of wood pulp
JP3309332B2 (en) * 1994-04-04 2002-07-29 住友重機械工業株式会社 Pulp bleaching method
SE9502339D0 (en) * 1995-06-28 1995-06-28 Jan Arlemark Gas phase ozone generation device
JPH1121778A (en) * 1997-07-08 1999-01-26 Mitsubishi Paper Mills Ltd Bleaching of pulp at medium concentration with ozone
FR2768442B1 (en) * 1997-09-15 1999-10-15 Air Liquide PROCESS FOR BLEACHING A PULP WITH OZONE AND CHLORINE DIOXIDE

Also Published As

Publication number Publication date
BR9913123B1 (en) 2011-02-08
AU5376099A (en) 2000-03-14
AU753807B2 (en) 2002-10-31
DE69938189T2 (en) 2009-02-12
FI981808A (en) 2000-02-25
ATE386836T1 (en) 2008-03-15
DE69938189D1 (en) 2008-04-03
CA2341490C (en) 2009-10-13
ES2303383T3 (en) 2008-08-01
PT1115946E (en) 2008-05-21
CA2341490A1 (en) 2000-03-02
EP1115946B1 (en) 2008-02-20
BR9913123A (en) 2001-09-25
JP2002523641A (en) 2002-07-30
JP4888749B2 (en) 2012-02-29
FI981808A0 (en) 1998-08-24
EP1115946A1 (en) 2001-07-18
WO2000011262A1 (en) 2000-03-02

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